Diversity and trait-specific sources for productivity and nutritional traits in the global proso millet (Panicum miliaceum L.) germplasm collection

Vetriventhan, M and Upadhyaya, H D (2018) Diversity and trait-specific sources for productivity and nutritional traits in the global proso millet (Panicum miliaceum L.) germplasm collection. The Crop Journal (TSI), 6 (5). pp. 451-463. ISSN 22145141

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Abstract

Proso millet is an important short-duration crop that adapts well to varied climatic conditions and is grown worldwide for food, feed and fodder purposes. Owing to a lack of genetic improvement, the crop has experienced no yield improvement and provides low income to farmers. In this study, 200 accessions of proso millet originating in 30 countries were evaluated in two rainy seasons to assess phenotypic diversity for morpho-agronomic and grain nutritional traits and to identify high grain-yielding and grain nutrient-rich accessions. Proso millet diversity was structured by geographical region, by country within region, and by racial group. Race patentissimum showed high diversity and ovatum low diversity, and diverged widely from each other. The lowest divergence was observed between races compactum and ovatum. Eighteen high grain-yielding, 10 large-seeded, and 26 two or more grain nutrients-rich accessions were identified, and highly diverse pairs of accessions within and between trait groups were identified. They included IPm 9 and IPm 2661 for high grain yield and large seed size; and IPm 2069, IPm 2076, and IPm 2537 for high Fe, Zn, Ca, and protein contents. IPm 2875 had a seed coat that is readily removed by threshing. This study provides valuable information to proso millet researchers about agronomic and nutritional traits in accessions that could be tested for regional adaption and yield for direct release as cultivars, and could be used in breeding for developing high grain-yielding and nutrient-rich cultivars.

Item Type: Article
Divisions: Research Program : Genetic Gains
CRP: UNSPECIFIED
Uncontrolled Keywords: Proso millet, Common millet, Diversity, Race, Germplasm, Grain nutrient
Subjects: Mandate crops > Millets
Others > Genetics and Genomics
Others > Germplasm Collection
Depositing User: Mr Ramesh K
Date Deposited: 15 Oct 2018 08:41
Last Modified: 22 Oct 2018 10:16
URI: http://oar.icrisat.org/id/eprint/10891
Official URL: http://dx.doi.org/10.1016/j.cj.2018.04.002
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: The authors gratefully acknowledge the contributions of Mr. Shailesh K. Singh, Mr. Venu Gopal, and Mr. Thimma Reddy of the ICRISAT Genebank, Patancheru, India in data collection and documentation.
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